When you have an offenderfor instance who brings a firearm to a scene, that lays out a...

When you have an offender
for instance who brings a firearm to a scene, that lays out a certain set
of circumstances that can lead you
one way or another. The second challenge is, experts can match
bullets removed from bodies to specific firearms or wounds on a body
to specific blades. But when you're dealing
with something really idiosyncratic, there's no way
to necessarily quantify how those injuries were caused
by that weapon